[SOURCE] How to make an MSN Status Changer using Visual Studio 2010

Code:
Imports System.Threading.Thread
Public Class Form1
    Dim CTF As New MessengerAPI.Messenger

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If CheckBox1.Checked = False Then
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_ONLINE
        Else
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_ONLINE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_INVISIBLE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_ONLINE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_INVISIBLE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_ONLINE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_INVISIBLE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_ONLINE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_INVISIBLE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_ONLINE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_INVISIBLE
            Sleep(2000)
            CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_ONLINE
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_AWAY
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_BUSY
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        CTF.MyStatus = MessengerAPI.MISTATUS.MISTATUS_INVISIBLE
    End Sub
End Class